# 语法错误
# for i in range(10)
#     print(i)

# 运行时错误
# a = [1, 2, 3]
# print(a[3])

# 语义错误
# a = [1, 2, 3]
# print(a[2])

# Debug  断点
for i in range(1, 10):  # 控制行
    for j in range(1, i + 1):  # 控制行中的列
        print(f"{j} * {i} = {j*i}", end="\t")
    print()  # 换行
